Preparation of Spheric and Hollow TiO2 Electrophoretic Nanoparticles

The inorganic electrophoretic particles easily sedimentate and are not preferably dispersed in medium because their density is relatively big. Spheric and hollow TiOB2Bparticles were prepared against the core-shell polymer latex particles via a simple wet-chemistry route, using Ti(OBu)B4Bas a precursor. The particles¢ morphology was observed by atom force microscopy (AFM) images, scanning electron microscope (SEM) and transmission electron microscopy (TEM). The products were characterized by X-ray Diffraction (XRD) and TEM. TEM showed spheric and hollow particles with a diameter around 290 nm. The density (in the atmospheric pressure, 20°C) of TiOB2Bwas 2.21 g∙mLP-1P. Results showed that hollow framework could reduce the density of particles. The Zeta potentials were determined by micro-electrophoresis apparatus. TiOB2Bparticles had good electrophoretic property, and the Zeta potential was 5.25 mV.

Uroplastin, Its Nature and Its Excretion Pattern in Health and in Certain Disease States

SummaryExperimental studies with a partially purified, potent procoagulant from human urine are reported. The material having the electrophoretic property of a â-globulin appears to functionally closely resemble tissue thromboplastin. A significant difference in the excretion of this pro coagulant between normal males and females and deviations from the normal excretion pattern in patients with impaired kidney function and certain other disease states are demonstrated. Possible pathophysiological implications of these findings are discussed.

Physicochemical Properties of Circulating Red Blood Cells of Lethally X-irradiated Mice Treated with Rat Bone Marrow

1. Two months after injection of rat bone marrow into lethally X-irradiated mice (950 r-RBM mice), 100% of the circulating RBC were serologically of the rat type, indicating that the surface molecular configuration of RBC from these experimental mice are of the rat type. 2. The hemoglobin was found to be also very much like the rat type in its ease in crystallization, its alkali denaturation property, its electrophoretic property, and its tendency to form a paracrystalline state at low temperature. 3. These cells possessed dual osmotic properties; the relative hemoglobin concentration released when cells were lysed in water was more comparable to the rat type, but its temperature dependency was more comparable to the mouse type.